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2660316439 = 111931253093
BaseRepresentation
bin1001111010010001…
…0011010100010111
320212101212002002111
42132210103110113
520422020111224
61115551451451
7122632213414
oct23644232427
96771762074
102660316439
111145752130
12622b26b87
13335200c51
141b346310b
15108846d94
hex9e913517

2660316439 has 8 divisors (see below), whose sum is σ = 2917202832. Its totient is φ = 2405936640.

The previous prime is 2660316433. The next prime is 2660316473. The reversal of 2660316439 is 9346130662.

2660316439 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2660316439 - 27 = 2660316311 is a prime.

It is a super-2 number, since 2×26603164392 = 14154567111227281442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660316433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 624424 + ... + 628669.

It is an arithmetic number, because the mean of its divisors is an integer number (364650354).

Almost surely, 22660316439 is an apocalyptic number.

2660316439 is a deficient number, since it is larger than the sum of its proper divisors (256886393).

2660316439 is a wasteful number, since it uses less digits than its factorization.

2660316439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253297.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 2660316439 is about 51578.2554862027. The cubic root of 2660316439 is about 1385.6209233046.

The spelling of 2660316439 in words is "two billion, six hundred sixty million, three hundred sixteen thousand, four hundred thirty-nine".

Divisors: 1 11 193 2123 1253093 13784023 241846949 2660316439